In line skate brake



FIG. 1 is a Left elevation view of the design of the instant invention; showing a phantom skate, for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a Top Left Side perspective view;

FIG. 3 is a Rear elevation;

FIG. 4 is a Top Plan view; and,

FIG. 5 is a Bottom Plan view. 

The ornamental design for an in line skate brake, as shown and described. 